mature_miRNA miRNA* pre-miRNA EST_contig mismatches bulges arm species source_database RFAM_best_hit RFAM_lowest_evalue miRBase_best_hit miRBase_lowest_evalue folding_energy secondary_structure TGAGTTGGTTATACATTCTT GAATTTTAACCAACACA TGAGTTGGTTATACATTCTTGCGATATTTAAGTATAATAGCAAGAATTTTAACCAACACA 5 1 5' arm Ciona_intestinalis mirbase 100 cin-mir-4003a-2 2e-28 -21.7 ...((((((((...((((((((.((((....))))....))))))))..))))))))... (-21.70)